drivers/gpu/drm/amd/amdgpu/sdma_v7_0.c

   1 /*
   2  * Copyright 2023 Advanced Micro Devices, Inc.
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20  * OTHER DEALINGS IN THE SOFTWARE.
  21  *
  22  */
  23
  24 #include <linux/delay.h>
  25 #include <linux/firmware.h>
  26 #include <linux/module.h>
  27 #include <linux/pci.h>
  28
  29 #include "amdgpu.h"
  30 #include "amdgpu_ucode.h"
  31 #include "amdgpu_trace.h"
  32
  33 #include "gc/gc_12_0_0_offset.h"
  34 #include "gc/gc_12_0_0_sh_mask.h"
  35 #include "hdp/hdp_6_0_0_offset.h"
  36 #include "ivsrcid/gfx/irqsrcs_gfx_11_0_0.h"
  37
  38 #include "soc15_common.h"
  39 #include "soc15.h"
  40 #include "sdma_v6_0_0_pkt_open.h"
  41 #include "nbio_v4_3.h"
  42 #include "sdma_common.h"
  43 #include "sdma_v7_0.h"
  44 #include "v12_structs.h"
  45
  46 MODULE_FIRMWARE("amdgpu/sdma_7_0_0.bin");
  47 MODULE_FIRMWARE("amdgpu/sdma_7_0_1.bin");
  48
  49 #define SDMA1_REG_OFFSET 0x600
  50 #define SDMA0_HYP_DEC_REG_START 0x5880
  51 #define SDMA0_HYP_DEC_REG_END 0x589a
  52 #define SDMA1_HYP_DEC_REG_OFFSET 0x20
  53
  54 static const struct amdgpu_hwip_reg_entry sdma_reg_list_7_0[] = {
  55         SOC15_REG_ENTRY_STR(GC, 0, regSDMA0_STATUS_REG),
  56         SOC15_REG_ENTRY_STR(GC, 0, regSDMA0_STATUS1_REG),
  57         SOC15_REG_ENTRY_STR(GC, 0, regSDMA0_STATUS2_REG),
  58         SOC15_REG_ENTRY_STR(GC, 0, regSDMA0_STATUS3_REG),
  59         SOC15_REG_ENTRY_STR(GC, 0, regSDMA0_STATUS4_REG),
  60         SOC15_REG_ENTRY_STR(GC, 0, regSDMA0_STATUS5_REG),
  61         SOC15_REG_ENTRY_STR(GC, 0, regSDMA0_STATUS6_REG),
  62         SOC15_REG_ENTRY_STR(GC, 0, regSDMA0_UCODE_REV),
  63         SOC15_REG_ENTRY_STR(GC, 0, regSDMA0_RB_RPTR_FETCH_HI),
  64         SOC15_REG_ENTRY_STR(GC, 0, regSDMA0_RB_RPTR_FETCH),
  65         SOC15_REG_ENTRY_STR(GC, 0, regSDMA0_UTCL1_RD_STATUS),
  66         SOC15_REG_ENTRY_STR(GC, 0, regSDMA0_UTCL1_WR_STATUS),
  67         SOC15_REG_ENTRY_STR(GC, 0, regSDMA0_UTCL1_RD_XNACK0),
  68         SOC15_REG_ENTRY_STR(GC, 0, regSDMA0_UTCL1_RD_XNACK1),
  69         SOC15_REG_ENTRY_STR(GC, 0, regSDMA0_UTCL1_WR_XNACK0),
  70         SOC15_REG_ENTRY_STR(GC, 0, regSDMA0_UTCL1_WR_XNACK1),
  71         SOC15_REG_ENTRY_STR(GC, 0, regSDMA0_QUEUE0_RB_CNTL),
  72         SOC15_REG_ENTRY_STR(GC, 0, regSDMA0_QUEUE0_RB_RPTR),
  73         SOC15_REG_ENTRY_STR(GC, 0, regSDMA0_QUEUE0_RB_RPTR_HI),
  74         SOC15_REG_ENTRY_STR(GC, 0, regSDMA0_QUEUE0_RB_WPTR),
  75         SOC15_REG_ENTRY_STR(GC, 0, regSDMA0_QUEUE0_RB_WPTR_HI),
  76         SOC15_REG_ENTRY_STR(GC, 0, regSDMA0_QUEUE0_IB_OFFSET),
  77         SOC15_REG_ENTRY_STR(GC, 0, regSDMA0_QUEUE0_IB_BASE_LO),
  78         SOC15_REG_ENTRY_STR(GC, 0, regSDMA0_QUEUE0_IB_BASE_HI),
  79         SOC15_REG_ENTRY_STR(GC, 0, regSDMA0_QUEUE0_IB_CNTL),
  80         SOC15_REG_ENTRY_STR(GC, 0, regSDMA0_QUEUE0_IB_RPTR),
  81         SOC15_REG_ENTRY_STR(GC, 0, regSDMA0_QUEUE0_IB_SUB_REMAIN),
  82         SOC15_REG_ENTRY_STR(GC, 0, regSDMA0_QUEUE0_DUMMY_REG),
  83         SOC15_REG_ENTRY_STR(GC, 0, regSDMA0_QUEUE_STATUS0),
  84         SOC15_REG_ENTRY_STR(GC, 0, regSDMA0_QUEUE1_RB_CNTL),
  85         SOC15_REG_ENTRY_STR(GC, 0, regSDMA0_QUEUE1_RB_RPTR),
  86         SOC15_REG_ENTRY_STR(GC, 0, regSDMA0_QUEUE1_RB_RPTR_HI),
  87         SOC15_REG_ENTRY_STR(GC, 0, regSDMA0_QUEUE1_RB_WPTR),
  88         SOC15_REG_ENTRY_STR(GC, 0, regSDMA0_QUEUE1_RB_WPTR_HI),
  89         SOC15_REG_ENTRY_STR(GC, 0, regSDMA0_QUEUE1_IB_OFFSET),
  90         SOC15_REG_ENTRY_STR(GC, 0, regSDMA0_QUEUE1_IB_BASE_LO),
  91         SOC15_REG_ENTRY_STR(GC, 0, regSDMA0_QUEUE1_IB_BASE_HI),
  92         SOC15_REG_ENTRY_STR(GC, 0, regSDMA0_QUEUE1_IB_RPTR),
  93         SOC15_REG_ENTRY_STR(GC, 0, regSDMA0_QUEUE1_IB_SUB_REMAIN),
  94         SOC15_REG_ENTRY_STR(GC, 0, regSDMA0_QUEUE1_DUMMY_REG),
  95         SOC15_REG_ENTRY_STR(GC, 0, regSDMA0_QUEUE2_RB_CNTL),
  96         SOC15_REG_ENTRY_STR(GC, 0, regSDMA0_QUEUE2_RB_RPTR),
  97         SOC15_REG_ENTRY_STR(GC, 0, regSDMA0_QUEUE2_RB_RPTR_HI),
  98         SOC15_REG_ENTRY_STR(GC, 0, regSDMA0_QUEUE2_RB_WPTR),
  99         SOC15_REG_ENTRY_STR(GC, 0, regSDMA0_QUEUE2_RB_WPTR_HI),
 100         SOC15_REG_ENTRY_STR(GC, 0, regSDMA0_QUEUE2_IB_OFFSET),
 101         SOC15_REG_ENTRY_STR(GC, 0, regSDMA0_QUEUE2_IB_BASE_LO),
 102         SOC15_REG_ENTRY_STR(GC, 0, regSDMA0_QUEUE2_IB_BASE_HI),
 103         SOC15_REG_ENTRY_STR(GC, 0, regSDMA0_QUEUE2_IB_RPTR),
 104         SOC15_REG_ENTRY_STR(GC, 0, regSDMA0_QUEUE2_IB_SUB_REMAIN),
 105         SOC15_REG_ENTRY_STR(GC, 0, regSDMA0_QUEUE2_DUMMY_REG),
 106         SOC15_REG_ENTRY_STR(GC, 0, regSDMA0_INT_STATUS),
 107         SOC15_REG_ENTRY_STR(GC, 0, regSDMA0_VM_CNTL),
 108         SOC15_REG_ENTRY_STR(GC, 0, regGRBM_STATUS2),
 109         SOC15_REG_ENTRY_STR(GC, 0, regSDMA0_CHICKEN_BITS),
 110 };
 111
 112 static void sdma_v7_0_set_ring_funcs(struct amdgpu_device *adev);
 113 static void sdma_v7_0_set_buffer_funcs(struct amdgpu_device *adev);
 114 static void sdma_v7_0_set_vm_pte_funcs(struct amdgpu_device *adev);
 115 static void sdma_v7_0_set_irq_funcs(struct amdgpu_device *adev);
 116 static int sdma_v7_0_start(struct amdgpu_device *adev);
 117
 118 static u32 sdma_v7_0_get_reg_offset(struct amdgpu_device *adev, u32 instance, u32 internal_offset)
 119 {
 120         u32 base;
 121
 122         if (internal_offset >= SDMA0_HYP_DEC_REG_START &&
 123             internal_offset <= SDMA0_HYP_DEC_REG_END) {
 124                 base = adev->reg_offset[GC_HWIP][0][1];
 125                 if (instance != 0)
 126                         internal_offset += SDMA1_HYP_DEC_REG_OFFSET * instance;
 127         } else {
 128                 base = adev->reg_offset[GC_HWIP][0][0];
 129                 if (instance == 1)
 130                         internal_offset += SDMA1_REG_OFFSET;
 131         }
 132
 133         return base + internal_offset;
 134 }
 135
 136 static unsigned sdma_v7_0_ring_init_cond_exec(struct amdgpu_ring *ring,
 137                                               uint64_t addr)
 138 {
 139         unsigned ret;
 140
 141         amdgpu_ring_write(ring, SDMA_PKT_COPY_LINEAR_HEADER_OP(SDMA_OP_COND_EXE));
 142         amdgpu_ring_write(ring, lower_32_bits(addr));
 143         amdgpu_ring_write(ring, upper_32_bits(addr));
 144         amdgpu_ring_write(ring, 1);
 145         /* this is the offset we need patch later */
 146         ret = ring->wptr & ring->buf_mask;
 147         /* insert dummy here and patch it later */
 148         amdgpu_ring_write(ring, 0);
 149
 150         return ret;
 151 }
 152
 153 /**
 154  * sdma_v7_0_ring_get_rptr - get the current read pointer
 155  *
 156  * @ring: amdgpu ring pointer
 157  *
 158  * Get the current rptr from the hardware.
 159  */
 160 static uint64_t sdma_v7_0_ring_get_rptr(struct amdgpu_ring *ring)
 161 {
 162         u64 *rptr;
 163
 164         /* XXX check if swapping is necessary on BE */
 165         rptr = (u64 *)ring->rptr_cpu_addr;
 166
 167         DRM_DEBUG("rptr before shift == 0x%016llx\n", *rptr);
 168         return ((*rptr) >> 2);
 169 }
 170
 171 /**
 172  * sdma_v7_0_ring_get_wptr - get the current write pointer
 173  *
 174  * @ring: amdgpu ring pointer
 175  *
 176  * Get the current wptr from the hardware.
 177  */
 178 static uint64_t sdma_v7_0_ring_get_wptr(struct amdgpu_ring *ring)
 179 {
 180         u64 wptr = 0;
 181
 182         if (ring->use_doorbell) {
 183                 /* XXX check if swapping is necessary on BE */
 184                 wptr = READ_ONCE(*((u64 *)ring->wptr_cpu_addr));
 185                 DRM_DEBUG("wptr/doorbell before shift == 0x%016llx\n", wptr);
 186         }
 187
 188         return wptr >> 2;
 189 }
 190
 191 /**
 192  * sdma_v7_0_ring_set_wptr - commit the write pointer
 193  *
 194  * @ring: amdgpu ring pointer
 195  *
 196  * Write the wptr back to the hardware.
 197  */
 198 static void sdma_v7_0_ring_set_wptr(struct amdgpu_ring *ring)
 199 {
 200         struct amdgpu_device *adev = ring->adev;
 201         uint32_t *wptr_saved;
 202         uint32_t *is_queue_unmap;
 203         uint64_t aggregated_db_index;
 204         uint32_t mqd_size = adev->mqds[AMDGPU_HW_IP_DMA].mqd_size;
 205
 206         DRM_DEBUG("Setting write pointer\n");
 207
 208         if (ring->is_mes_queue) {
 209                 wptr_saved = (uint32_t *)(ring->mqd_ptr + mqd_size);
 210                 is_queue_unmap = (uint32_t *)(ring->mqd_ptr + mqd_size +
 211                                               sizeof(uint32_t));
 212                 aggregated_db_index =
 213                         amdgpu_mes_get_aggregated_doorbell_index(adev,
 214                                                          ring->hw_prio);
 215
 216                 atomic64_set((atomic64_t *)ring->wptr_cpu_addr,
 217                              ring->wptr << 2);
 218                 *wptr_saved = ring->wptr << 2;
 219                 if (*is_queue_unmap) {
 220                         WDOORBELL64(aggregated_db_index, ring->wptr << 2);
 221                         DRM_DEBUG("calling WDOORBELL64(0x%08x, 0x%016llx)\n",
 222                                         ring->doorbell_index, ring->wptr << 2);
 223                         WDOORBELL64(ring->doorbell_index, ring->wptr << 2);
 224                 } else {
 225                         DRM_DEBUG("calling WDOORBELL64(0x%08x, 0x%016llx)\n",
 226                                         ring->doorbell_index, ring->wptr << 2);
 227                         WDOORBELL64(ring->doorbell_index, ring->wptr << 2);
 228                 }
 229         } else {
 230                 if (ring->use_doorbell) {
 231                         DRM_DEBUG("Using doorbell -- "
 232                                   "wptr_offs == 0x%08x "
 233                                   "lower_32_bits(ring->wptr) << 2 == 0x%08x "
 234                                   "upper_32_bits(ring->wptr) << 2 == 0x%08x\n",
 235                                   ring->wptr_offs,
 236                                   lower_32_bits(ring->wptr << 2),
 237                                   upper_32_bits(ring->wptr << 2));
 238                         /* XXX check if swapping is necessary on BE */
 239                         atomic64_set((atomic64_t *)ring->wptr_cpu_addr,
 240                                      ring->wptr << 2);
 241                         DRM_DEBUG("calling WDOORBELL64(0x%08x, 0x%016llx)\n",
 242                                   ring->doorbell_index, ring->wptr << 2);
 243                         WDOORBELL64(ring->doorbell_index, ring->wptr << 2);
 244                 } else {
 245                         DRM_DEBUG("Not using doorbell -- "
 246                                   "regSDMA%i_GFX_RB_WPTR == 0x%08x "
 247                                   "regSDMA%i_GFX_RB_WPTR_HI == 0x%08x\n",
 248                                   ring->me,
 249                                   lower_32_bits(ring->wptr << 2),
 250                                   ring->me,
 251                                   upper_32_bits(ring->wptr << 2));
 252                         WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev,
 253                                                                      ring->me,
 254                                                                      regSDMA0_QUEUE0_RB_WPTR),
 255                                         lower_32_bits(ring->wptr << 2));
 256                         WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev,
 257                                                                      ring->me,
 258                                                                      regSDMA0_QUEUE0_RB_WPTR_HI),
 259                                         upper_32_bits(ring->wptr << 2));
 260                 }
 261         }
 262 }
 263
 264 static void sdma_v7_0_ring_insert_nop(struct amdgpu_ring *ring, uint32_t count)
 265 {
 266         struct amdgpu_sdma_instance *sdma = amdgpu_sdma_get_instance_from_ring(ring);
 267         int i;
 268
 269         for (i = 0; i < count; i++)
 270                 if (sdma && sdma->burst_nop && (i == 0))
 271                         amdgpu_ring_write(ring, ring->funcs->nop |
 272                                 SDMA_PKT_NOP_HEADER_COUNT(count - 1));
 273                 else
 274                         amdgpu_ring_write(ring, ring->funcs->nop);
 275 }
 276
 277 /**
 278  * sdma_v7_0_ring_emit_ib - Schedule an IB on the DMA engine
 279  *
 280  * @ring: amdgpu ring pointer
 281  * @job: job to retrieve vmid from
 282  * @ib: IB object to schedule
 283  * @flags: unused
 284  *
 285  * Schedule an IB in the DMA ring.
 286  */
 287 static void sdma_v7_0_ring_emit_ib(struct amdgpu_ring *ring,
 288                                    struct amdgpu_job *job,
 289                                    struct amdgpu_ib *ib,
 290                                    uint32_t flags)
 291 {
 292         unsigned vmid = AMDGPU_JOB_GET_VMID(job);
 293         uint64_t csa_mc_addr = amdgpu_sdma_get_csa_mc_addr(ring, vmid);
 294
 295         /* An IB packet must end on a 8 DW boundary--the next dword
 296          * must be on a 8-dword boundary. Our IB packet below is 6
 297          * dwords long, thus add x number of NOPs, such that, in
 298          * modular arithmetic,
 299          * wptr + 6 + x = 8k, k >= 0, which in C is,
 300          * (wptr + 6 + x) % 8 = 0.
 301          * The expression below, is a solution of x.
 302          */
 303         sdma_v7_0_ring_insert_nop(ring, (2 - lower_32_bits(ring->wptr)) & 7);
 304
 305         amdgpu_ring_write(ring, SDMA_PKT_COPY_LINEAR_HEADER_OP(SDMA_OP_INDIRECT) |
 306                           SDMA_PKT_INDIRECT_HEADER_VMID(vmid & 0xf));
 307         /* base must be 32 byte aligned */
 308         amdgpu_ring_write(ring, lower_32_bits(ib->gpu_addr) & 0xffffffe0);
 309         amdgpu_ring_write(ring, upper_32_bits(ib->gpu_addr));
 310         amdgpu_ring_write(ring, ib->length_dw);
 311         amdgpu_ring_write(ring, lower_32_bits(csa_mc_addr));
 312         amdgpu_ring_write(ring, upper_32_bits(csa_mc_addr));
 313 }
 314
 315 /**
 316  * sdma_v7_0_ring_emit_mem_sync - flush the IB by graphics cache rinse
 317  *
 318  * @ring: amdgpu ring pointer
 319  *
 320  * flush the IB by graphics cache rinse.
 321  */
 322 static void sdma_v7_0_ring_emit_mem_sync(struct amdgpu_ring *ring)
 323 {
 324         uint32_t gcr_cntl = SDMA_GCR_GL2_INV | SDMA_GCR_GL2_WB | SDMA_GCR_GLM_INV |
 325                 SDMA_GCR_GL1_INV | SDMA_GCR_GLV_INV | SDMA_GCR_GLK_INV |
 326                 SDMA_GCR_GLI_INV(1);
 327
 328         /* flush entire cache L0/L1/L2, this can be optimized by performance requirement */
 329         amdgpu_ring_write(ring, SDMA_PKT_COPY_LINEAR_HEADER_OP(SDMA_OP_GCR_REQ));
 330         amdgpu_ring_write(ring, SDMA_PKT_GCR_REQ_PAYLOAD1_BASE_VA_31_7(0));
 331         amdgpu_ring_write(ring, SDMA_PKT_GCR_REQ_PAYLOAD2_GCR_CONTROL_15_0(gcr_cntl) |
 332                           SDMA_PKT_GCR_REQ_PAYLOAD2_BASE_VA_47_32(0));
 333         amdgpu_ring_write(ring, SDMA_PKT_GCR_REQ_PAYLOAD3_LIMIT_VA_31_7(0) |
 334                           SDMA_PKT_GCR_REQ_PAYLOAD3_GCR_CONTROL_18_16(gcr_cntl >> 16));
 335         amdgpu_ring_write(ring, SDMA_PKT_GCR_REQ_PAYLOAD4_LIMIT_VA_47_32(0) |
 336                           SDMA_PKT_GCR_REQ_PAYLOAD4_VMID(0));
 337 }
 338
 339
 340 /**
 341  * sdma_v7_0_ring_emit_hdp_flush - emit an hdp flush on the DMA ring
 342  *
 343  * @ring: amdgpu ring pointer
 344  *
 345  * Emit an hdp flush packet on the requested DMA ring.
 346  */
 347 static void sdma_v7_0_ring_emit_hdp_flush(struct amdgpu_ring *ring)
 348 {
 349         struct amdgpu_device *adev = ring->adev;
 350         u32 ref_and_mask = 0;
 351         const struct nbio_hdp_flush_reg *nbio_hf_reg = adev->nbio.hdp_flush_reg;
 352
 353         ref_and_mask = nbio_hf_reg->ref_and_mask_sdma0 << ring->me;
 354
 355         amdgpu_ring_write(ring, SDMA_PKT_COPY_LINEAR_HEADER_OP(SDMA_OP_POLL_REGMEM) |
 356                           SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(1) |
 357                           SDMA_PKT_POLL_REGMEM_HEADER_FUNC(3)); /* == */
 358         amdgpu_ring_write(ring, (adev->nbio.funcs->get_hdp_flush_done_offset(adev)) << 2);
 359         amdgpu_ring_write(ring, (adev->nbio.funcs->get_hdp_flush_req_offset(adev)) << 2);
 360         amdgpu_ring_write(ring, ref_and_mask); /* reference */
 361         amdgpu_ring_write(ring, ref_and_mask); /* mask */
 362         amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) |
 363                           SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(10)); /* retry count, poll interval */
 364 }
 365
 366 /**
 367  * sdma_v7_0_ring_emit_fence - emit a fence on the DMA ring
 368  *
 369  * @ring: amdgpu ring pointer
 370  * @addr: address
 371  * @seq: fence seq number
 372  * @flags: fence flags
 373  *
 374  * Add a DMA fence packet to the ring to write
 375  * the fence seq number and DMA trap packet to generate
 376  * an interrupt if needed.
 377  */
 378 static void sdma_v7_0_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 seq,
 379                                       unsigned flags)
 380 {
 381         bool write64bit = flags & AMDGPU_FENCE_FLAG_64BIT;
 382         /* write the fence */
 383         amdgpu_ring_write(ring, SDMA_PKT_COPY_LINEAR_HEADER_OP(SDMA_OP_FENCE) |
 384                           SDMA_PKT_FENCE_HEADER_MTYPE(0x3)); /* Ucached(UC) */
 385         /* zero in first two bits */
 386         BUG_ON(addr & 0x3);
 387         amdgpu_ring_write(ring, lower_32_bits(addr));
 388         amdgpu_ring_write(ring, upper_32_bits(addr));
 389         amdgpu_ring_write(ring, lower_32_bits(seq));
 390
 391         /* optionally write high bits as well */
 392         if (write64bit) {
 393                 addr += 4;
 394                 amdgpu_ring_write(ring, SDMA_PKT_COPY_LINEAR_HEADER_OP(SDMA_OP_FENCE) |
 395                                   SDMA_PKT_FENCE_HEADER_MTYPE(0x3));
 396                 /* zero in first two bits */
 397                 BUG_ON(addr & 0x3);
 398                 amdgpu_ring_write(ring, lower_32_bits(addr));
 399                 amdgpu_ring_write(ring, upper_32_bits(addr));
 400                 amdgpu_ring_write(ring, upper_32_bits(seq));
 401         }
 402
 403         if (flags & AMDGPU_FENCE_FLAG_INT) {
 404                 uint32_t ctx = ring->is_mes_queue ?
 405                         (ring->hw_queue_id | AMDGPU_FENCE_MES_QUEUE_FLAG) : 0;
 406                 /* generate an interrupt */
 407                 amdgpu_ring_write(ring, SDMA_PKT_COPY_LINEAR_HEADER_OP(SDMA_OP_TRAP));
 408                 amdgpu_ring_write(ring, SDMA_PKT_TRAP_INT_CONTEXT_INT_CONTEXT(ctx));
 409         }
 410 }
 411
 412 /**
 413  * sdma_v7_0_gfx_stop - stop the gfx async dma engines
 414  *
 415  * @adev: amdgpu_device pointer
 416  *
 417  * Stop the gfx async dma ring buffers.
 418  */
 419 static void sdma_v7_0_gfx_stop(struct amdgpu_device *adev)
 420 {
 421         u32 rb_cntl, ib_cntl;
 422         int i;
 423
 424         for (i = 0; i < adev->sdma.num_instances; i++) {
 425                 rb_cntl = RREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_RB_CNTL));
 426                 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_QUEUE0_RB_CNTL, RB_ENABLE, 0);
 427                 WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_RB_CNTL), rb_cntl);
 428                 ib_cntl = RREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_IB_CNTL));
 429                 ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_QUEUE0_IB_CNTL, IB_ENABLE, 0);
 430                 WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_IB_CNTL), ib_cntl);
 431         }
 432 }
 433
 434 /**
 435  * sdma_v7_0_rlc_stop - stop the compute async dma engines
 436  *
 437  * @adev: amdgpu_device pointer
 438  *
 439  * Stop the compute async dma queues.
 440  */
 441 static void sdma_v7_0_rlc_stop(struct amdgpu_device *adev)
 442 {
 443         /* XXX todo */
 444 }
 445
 446 /**
 447  * sdma_v7_0_ctx_switch_enable - stop the async dma engines context switch
 448  *
 449  * @adev: amdgpu_device pointer
 450  * @enable: enable/disable the DMA MEs context switch.
 451  *
 452  * Halt or unhalt the async dma engines context switch.
 453  */
 454 static void sdma_v7_0_ctx_switch_enable(struct amdgpu_device *adev, bool enable)
 455 {
 456 }
 457
 458 /**
 459  * sdma_v7_0_enable - stop the async dma engines
 460  *
 461  * @adev: amdgpu_device pointer
 462  * @enable: enable/disable the DMA MEs.
 463  *
 464  * Halt or unhalt the async dma engines.
 465  */
 466 static void sdma_v7_0_enable(struct amdgpu_device *adev, bool enable)
 467 {
 468         u32 mcu_cntl;
 469         int i;
 470
 471         if (!enable) {
 472                 sdma_v7_0_gfx_stop(adev);
 473                 sdma_v7_0_rlc_stop(adev);
 474         }
 475
 476         if (amdgpu_sriov_vf(adev))
 477                 return;
 478
 479         for (i = 0; i < adev->sdma.num_instances; i++) {
 480                 mcu_cntl = RREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i, regSDMA0_MCU_CNTL));
 481                 mcu_cntl = REG_SET_FIELD(mcu_cntl, SDMA0_MCU_CNTL, HALT, enable ? 0 : 1);
 482                 WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i, regSDMA0_MCU_CNTL), mcu_cntl);
 483         }
 484 }
 485
 486 /**
 487  * sdma_v7_0_gfx_resume - setup and start the async dma engines
 488  *
 489  * @adev: amdgpu_device pointer
 490  *
 491  * Set up the gfx DMA ring buffers and enable them.
 492  * Returns 0 for success, error for failure.
 493  */
 494 static int sdma_v7_0_gfx_resume(struct amdgpu_device *adev)
 495 {
 496         struct amdgpu_ring *ring;
 497         u32 rb_cntl, ib_cntl;
 498         u32 rb_bufsz;
 499         u32 doorbell;
 500         u32 doorbell_offset;
 501         u32 tmp;
 502         u64 wptr_gpu_addr;
 503         int i, r;
 504
 505         for (i = 0; i < adev->sdma.num_instances; i++) {
 506                 ring = &adev->sdma.instance[i].ring;
 507
 508                 //if (!amdgpu_sriov_vf(adev))
 509                 //      WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i, regSDMA0_SEM_WAIT_FAIL_TIMER_CNTL), 0);
 510
 511                 /* Set ring buffer size in dwords */
 512                 rb_bufsz = order_base_2(ring->ring_size / 4);
 513                 rb_cntl = RREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_RB_CNTL));
 514                 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_QUEUE0_RB_CNTL, RB_SIZE, rb_bufsz);
 515 #ifdef __BIG_ENDIAN
 516                 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_QUEUE0_RB_CNTL, RB_SWAP_ENABLE, 1);
 517                 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_QUEUE0_RB_CNTL,
 518                                         RPTR_WRITEBACK_SWAP_ENABLE, 1);
 519 #endif
 520                 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_QUEUE0_RB_CNTL, RB_PRIV, 1);
 521                 WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_RB_CNTL), rb_cntl);
 522
 523                 /* Initialize the ring buffer's read and write pointers */
 524                 WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_RB_RPTR), 0);
 525                 WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_RB_RPTR_HI), 0);
 526                 WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_RB_WPTR), 0);
 527                 WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_RB_WPTR_HI), 0);
 528
 529                 /* setup the wptr shadow polling */
 530                 wptr_gpu_addr = ring->wptr_gpu_addr;
 531                 WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_RB_WPTR_POLL_ADDR_LO),
 532                        lower_32_bits(wptr_gpu_addr));
 533                 WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_RB_WPTR_POLL_ADDR_HI),
 534                        upper_32_bits(wptr_gpu_addr));
 535
 536                 /* set the wb address whether it's enabled or not */
 537                 WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_RB_RPTR_ADDR_HI),
 538                        upper_32_bits(ring->rptr_gpu_addr) & 0xFFFFFFFF);
 539                 WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_RB_RPTR_ADDR_LO),
 540                        lower_32_bits(ring->rptr_gpu_addr) & 0xFFFFFFFC);
 541
 542                 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_QUEUE0_RB_CNTL, RPTR_WRITEBACK_ENABLE, 1);
 543                 if (amdgpu_sriov_vf(adev))
 544                         rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_QUEUE0_RB_CNTL, WPTR_POLL_ENABLE, 1);
 545                 else
 546                         rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_QUEUE0_RB_CNTL, WPTR_POLL_ENABLE, 0);
 547                 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_QUEUE0_RB_CNTL, MCU_WPTR_POLL_ENABLE, 1);
 548
 549                 WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_RB_BASE), ring->gpu_addr >> 8);
 550                 WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_RB_BASE_HI), ring->gpu_addr >> 40);
 551
 552                 ring->wptr = 0;
 553
 554                 /* before programing wptr to a less value, need set minor_ptr_update first */
 555                 WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_MINOR_PTR_UPDATE), 1);
 556
 557                 if (!amdgpu_sriov_vf(adev)) { /* only bare-metal use register write for wptr */
 558                         WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_RB_WPTR), lower_32_bits(ring->wptr) << 2);
 559                         WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_RB_WPTR_HI), upper_32_bits(ring->wptr) << 2);
 560                 }
 561
 562                 doorbell = RREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_DOORBELL));
 563                 doorbell_offset = RREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_DOORBELL_OFFSET));
 564
 565                 if (ring->use_doorbell) {
 566                         doorbell = REG_SET_FIELD(doorbell, SDMA0_QUEUE0_DOORBELL, ENABLE, 1);
 567                         doorbell_offset = REG_SET_FIELD(doorbell_offset, SDMA0_QUEUE0_DOORBELL_OFFSET,
 568                                         OFFSET, ring->doorbell_index);
 569                 } else {
 570                         doorbell = REG_SET_FIELD(doorbell, SDMA0_QUEUE0_DOORBELL, ENABLE, 0);
 571                 }
 572                 WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_DOORBELL), doorbell);
 573                 WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_DOORBELL_OFFSET), doorbell_offset);
 574
 575                 if (i == 0)
 576                         adev->nbio.funcs->sdma_doorbell_range(adev, i, ring->use_doorbell,
 577                                                       ring->doorbell_index,
 578                                                       adev->doorbell_index.sdma_doorbell_range * adev->sdma.num_instances);
 579
 580                 if (amdgpu_sriov_vf(adev))
 581                         sdma_v7_0_ring_set_wptr(ring);
 582
 583                 /* set minor_ptr_update to 0 after wptr programed */
 584                 WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_MINOR_PTR_UPDATE), 0);
 585
 586                 /* Set up sdma hang watchdog */
 587                 tmp = RREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i, regSDMA0_WATCHDOG_CNTL));
 588                 /* 100ms per unit */
 589                 tmp = REG_SET_FIELD(tmp, SDMA0_WATCHDOG_CNTL, QUEUE_HANG_COUNT,
 590                                     max(adev->usec_timeout/100000, 1));
 591                 WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i, regSDMA0_WATCHDOG_CNTL), tmp);
 592
 593                 /* Set up RESP_MODE to non-copy addresses */
 594                 tmp = RREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i, regSDMA0_UTCL1_CNTL));
 595                 tmp = REG_SET_FIELD(tmp, SDMA0_UTCL1_CNTL, RESP_MODE, 3);
 596                 tmp = REG_SET_FIELD(tmp, SDMA0_UTCL1_CNTL, REDO_DELAY, 9);
 597                 WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i, regSDMA0_UTCL1_CNTL), tmp);
 598
 599                 /* program default cache read and write policy */
 600                 tmp = RREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i, regSDMA0_UTCL1_PAGE));
 601                 /* clean read policy and write policy bits */
 602                 tmp &= 0xFF0FFF;
 603                 tmp |= ((CACHE_READ_POLICY_L2__DEFAULT << 12) |
 604                          (CACHE_WRITE_POLICY_L2__DEFAULT << 14));
 605                 WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i, regSDMA0_UTCL1_PAGE), tmp);
 606
 607                 if (!amdgpu_sriov_vf(adev)) {
 608                         /* unhalt engine */
 609                         tmp = RREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i, regSDMA0_MCU_CNTL));
 610                         tmp = REG_SET_FIELD(tmp, SDMA0_MCU_CNTL, HALT, 0);
 611                         tmp = REG_SET_FIELD(tmp, SDMA0_MCU_CNTL, RESET, 0);
 612                         WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i, regSDMA0_MCU_CNTL), tmp);
 613                 }
 614
 615                 /* enable DMA RB */
 616                 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_QUEUE0_RB_CNTL, RB_ENABLE, 1);
 617                 WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_RB_CNTL), rb_cntl);
 618
 619                 ib_cntl = RREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_IB_CNTL));
 620                 ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_QUEUE0_IB_CNTL, IB_ENABLE, 1);
 621 #ifdef __BIG_ENDIAN
 622                 ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_QUEUE0_IB_CNTL, IB_SWAP_ENABLE, 1);
 623 #endif
 624                 /* enable DMA IBs */
 625                 WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_IB_CNTL), ib_cntl);
 626
 627                 ring->sched.ready = true;
 628
 629                 if (amdgpu_sriov_vf(adev)) { /* bare-metal sequence doesn't need below to lines */
 630                         sdma_v7_0_ctx_switch_enable(adev, true);
 631                         sdma_v7_0_enable(adev, true);
 632                 }
 633
 634                 r = amdgpu_ring_test_helper(ring);
 635                 if (r) {
 636                         ring->sched.ready = false;
 637                         return r;
 638                 }
 639
 640         }
 641
 642         return 0;
 643 }
 644
 645 /**
 646  * sdma_v7_0_rlc_resume - setup and start the async dma engines
 647  *
 648  * @adev: amdgpu_device pointer
 649  *
 650  * Set up the compute DMA queues and enable them.
 651  * Returns 0 for success, error for failure.
 652  */
 653 static int sdma_v7_0_rlc_resume(struct amdgpu_device *adev)
 654 {
 655         return 0;
 656 }
 657
 658 static void sdma_v12_0_free_ucode_buffer(struct amdgpu_device *adev)
 659 {
 660         int i;
 661
 662         for (i = 0; i < adev->sdma.num_instances; i++) {
 663                 amdgpu_bo_free_kernel(&adev->sdma.instance[i].sdma_fw_obj,
 664                                       &adev->sdma.instance[i].sdma_fw_gpu_addr,
 665                                       (void **)&adev->sdma.instance[i].sdma_fw_ptr);
 666         }
 667 }
 668
 669 /**
 670  * sdma_v7_0_load_microcode - load the sDMA ME ucode
 671  *
 672  * @adev: amdgpu_device pointer
 673  *
 674  * Loads the sDMA0/1 ucode.
 675  * Returns 0 for success, -EINVAL if the ucode is not available.
 676  */
 677 static int sdma_v7_0_load_microcode(struct amdgpu_device *adev)
 678 {
 679         const struct sdma_firmware_header_v3_0 *hdr;
 680         const __le32 *fw_data;
 681         u32 fw_size;
 682         uint32_t tmp, sdma_status, ic_op_cntl;
 683         int i, r, j;
 684
 685         /* halt the MEs */
 686         sdma_v7_0_enable(adev, false);
 687
 688         if (!adev->sdma.instance[0].fw)
 689                 return -EINVAL;
 690
 691         hdr = (const struct sdma_firmware_header_v3_0 *)
 692                 adev->sdma.instance[0].fw->data;
 693         amdgpu_ucode_print_sdma_hdr(&hdr->header);
 694
 695         fw_data = (const __le32 *)(adev->sdma.instance[0].fw->data +
 696                         le32_to_cpu(hdr->ucode_offset_bytes));
 697         fw_size = le32_to_cpu(hdr->ucode_size_bytes);
 698
 699         for (i = 0; i < adev->sdma.num_instances; i++) {
 700                 r = amdgpu_bo_create_reserved(adev, fw_size,
 701                                               PAGE_SIZE,
 702                                               AMDGPU_GEM_DOMAIN_VRAM,
 703                                               &adev->sdma.instance[i].sdma_fw_obj,
 704                                               &adev->sdma.instance[i].sdma_fw_gpu_addr,
 705                                               (void **)&adev->sdma.instance[i].sdma_fw_ptr);
 706                 if (r) {
 707                         dev_err(adev->dev, "(%d) failed to create sdma ucode bo\n", r);
 708                         return r;
 709                 }
 710
 711                 memcpy(adev->sdma.instance[i].sdma_fw_ptr, fw_data, fw_size);
 712
 713                 amdgpu_bo_kunmap(adev->sdma.instance[i].sdma_fw_obj);
 714                 amdgpu_bo_unreserve(adev->sdma.instance[i].sdma_fw_obj);
 715
 716                 tmp = RREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i, regSDMA0_IC_CNTL));
 717                 tmp = REG_SET_FIELD(tmp, SDMA0_IC_CNTL, GPA, 0);
 718                 WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i, regSDMA0_IC_CNTL), tmp);
 719
 720                 WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i, regSDMA0_IC_BASE_LO),
 721                         lower_32_bits(adev->sdma.instance[i].sdma_fw_gpu_addr));
 722                 WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i, regSDMA0_IC_BASE_HI),
 723                         upper_32_bits(adev->sdma.instance[i].sdma_fw_gpu_addr));
 724
 725                 tmp = RREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i, regSDMA0_IC_OP_CNTL));
 726                 tmp = REG_SET_FIELD(tmp, SDMA0_IC_OP_CNTL, PRIME_ICACHE, 1);
 727                 WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i, regSDMA0_IC_OP_CNTL), tmp);
 728
 729                 /* Wait for sdma ucode init complete */
 730                 for (j = 0; j < adev->usec_timeout; j++) {
 731                         ic_op_cntl = RREG32_SOC15_IP(GC,
 732                                         sdma_v7_0_get_reg_offset(adev, i, regSDMA0_IC_OP_CNTL));
 733                         sdma_status = RREG32_SOC15_IP(GC,
 734                                         sdma_v7_0_get_reg_offset(adev, i, regSDMA0_STATUS_REG));
 735                         if ((REG_GET_FIELD(ic_op_cntl, SDMA0_IC_OP_CNTL, ICACHE_PRIMED) == 1) &&
 736                             (REG_GET_FIELD(sdma_status, SDMA0_STATUS_REG, UCODE_INIT_DONE) == 1))
 737                                 break;
 738                         udelay(1);
 739                 }
 740
 741                 if (j >= adev->usec_timeout) {
 742                         dev_err(adev->dev, "failed to init sdma ucode\n");
 743                         return -EINVAL;
 744                 }
 745         }
 746
 747         return 0;
 748 }
 749
 750 static int sdma_v7_0_soft_reset(void *handle)
 751 {
 752         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 753         u32 tmp;
 754         int i;
 755
 756         sdma_v7_0_gfx_stop(adev);
 757
 758         for (i = 0; i < adev->sdma.num_instances; i++) {
 759                 //tmp = RREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i, regSDMA0_FREEZE));
 760                 //tmp |= SDMA0_FREEZE__FREEZE_MASK;
 761                 //WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i, regSDMA0_FREEZE), tmp);
 762                 tmp = RREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i, regSDMA0_MCU_CNTL));
 763                 tmp |= SDMA0_MCU_CNTL__HALT_MASK;
 764                 tmp |= SDMA0_MCU_CNTL__RESET_MASK;
 765                 WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i, regSDMA0_MCU_CNTL), tmp);
 766
 767                 WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_PREEMPT), 0);
 768
 769                 udelay(100);
 770
 771                 tmp = GRBM_SOFT_RESET__SOFT_RESET_SDMA0_MASK << i;
 772                 WREG32_SOC15(GC, 0, regGRBM_SOFT_RESET, tmp);
 773                 tmp = RREG32_SOC15(GC, 0, regGRBM_SOFT_RESET);
 774
 775                 udelay(100);
 776
 777                 WREG32_SOC15(GC, 0, regGRBM_SOFT_RESET, 0);
 778                 tmp = RREG32_SOC15(GC, 0, regGRBM_SOFT_RESET);
 779
 780                 udelay(100);
 781         }
 782
 783         return sdma_v7_0_start(adev);
 784 }
 785
 786 static bool sdma_v7_0_check_soft_reset(void *handle)
 787 {
 788         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 789         struct amdgpu_ring *ring;
 790         int i, r;
 791         long tmo = msecs_to_jiffies(1000);
 792
 793         for (i = 0; i < adev->sdma.num_instances; i++) {
 794                 ring = &adev->sdma.instance[i].ring;
 795                 r = amdgpu_ring_test_ib(ring, tmo);
 796                 if (r)
 797                         return true;
 798         }
 799
 800         return false;
 801 }
 802
 803 /**
 804  * sdma_v7_0_start - setup and start the async dma engines
 805  *
 806  * @adev: amdgpu_device pointer
 807  *
 808  * Set up the DMA engines and enable them.
 809  * Returns 0 for success, error for failure.
 810  */
 811 static int sdma_v7_0_start(struct amdgpu_device *adev)
 812 {
 813         int r = 0;
 814
 815         if (amdgpu_sriov_vf(adev)) {
 816                 sdma_v7_0_ctx_switch_enable(adev, false);
 817                 sdma_v7_0_enable(adev, false);
 818
 819                 /* set RB registers */
 820                 r = sdma_v7_0_gfx_resume(adev);
 821                 return r;
 822         }
 823
 824         if (adev->firmware.load_type == AMDGPU_FW_LOAD_DIRECT) {
 825                 r = sdma_v7_0_load_microcode(adev);
 826                 if (r) {
 827                         sdma_v12_0_free_ucode_buffer(adev);
 828                         return r;
 829                 }
 830
 831                 if (amdgpu_emu_mode == 1)
 832                         msleep(1000);
 833         }
 834
 835         /* unhalt the MEs */
 836         sdma_v7_0_enable(adev, true);
 837         /* enable sdma ring preemption */
 838         sdma_v7_0_ctx_switch_enable(adev, true);
 839
 840         /* start the gfx rings and rlc compute queues */
 841         r = sdma_v7_0_gfx_resume(adev);
 842         if (r)
 843                 return r;
 844         r = sdma_v7_0_rlc_resume(adev);
 845
 846         return r;
 847 }
 848
 849 static int sdma_v7_0_mqd_init(struct amdgpu_device *adev, void *mqd,
 850                               struct amdgpu_mqd_prop *prop)
 851 {
 852         struct v12_sdma_mqd *m = mqd;
 853         uint64_t wb_gpu_addr;
 854
 855         m->sdmax_rlcx_rb_cntl =
 856                 order_base_2(prop->queue_size / 4) << SDMA0_QUEUE0_RB_CNTL__RB_SIZE__SHIFT |
 857                 1 << SDMA0_QUEUE0_RB_CNTL__RPTR_WRITEBACK_ENABLE__SHIFT |
 858                 4 << SDMA0_QUEUE0_RB_CNTL__RPTR_WRITEBACK_TIMER__SHIFT |
 859                 1 << SDMA0_QUEUE0_RB_CNTL__MCU_WPTR_POLL_ENABLE__SHIFT;
 860
 861         m->sdmax_rlcx_rb_base = lower_32_bits(prop->hqd_base_gpu_addr >> 8);
 862         m->sdmax_rlcx_rb_base_hi = upper_32_bits(prop->hqd_base_gpu_addr >> 8);
 863
 864         wb_gpu_addr = prop->wptr_gpu_addr;
 865         m->sdmax_rlcx_rb_wptr_poll_addr_lo = lower_32_bits(wb_gpu_addr);
 866         m->sdmax_rlcx_rb_wptr_poll_addr_hi = upper_32_bits(wb_gpu_addr);
 867
 868         wb_gpu_addr = prop->rptr_gpu_addr;
 869         m->sdmax_rlcx_rb_rptr_addr_lo = lower_32_bits(wb_gpu_addr);
 870         m->sdmax_rlcx_rb_rptr_addr_hi = upper_32_bits(wb_gpu_addr);
 871
 872         m->sdmax_rlcx_ib_cntl = RREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, 0,
 873                                                         regSDMA0_QUEUE0_IB_CNTL));
 874
 875         m->sdmax_rlcx_doorbell_offset =
 876                 prop->doorbell_index << SDMA0_QUEUE0_DOORBELL_OFFSET__OFFSET__SHIFT;
 877
 878         m->sdmax_rlcx_doorbell = REG_SET_FIELD(0, SDMA0_QUEUE0_DOORBELL, ENABLE, 1);
 879
 880         m->sdmax_rlcx_doorbell_log = 0;
 881         m->sdmax_rlcx_rb_aql_cntl = 0x4000;     //regSDMA0_QUEUE0_RB_AQL_CNTL_DEFAULT;
 882         m->sdmax_rlcx_dummy_reg = 0xf;  //regSDMA0_QUEUE0_DUMMY_REG_DEFAULT;
 883
 884         return 0;
 885 }
 886
 887 static void sdma_v7_0_set_mqd_funcs(struct amdgpu_device *adev)
 888 {
 889         adev->mqds[AMDGPU_HW_IP_DMA].mqd_size = sizeof(struct v12_sdma_mqd);
 890         adev->mqds[AMDGPU_HW_IP_DMA].init_mqd = sdma_v7_0_mqd_init;
 891 }
 892
 893 /**
 894  * sdma_v7_0_ring_test_ring - simple async dma engine test
 895  *
 896  * @ring: amdgpu_ring structure holding ring information
 897  *
 898  * Test the DMA engine by writing using it to write an
 899  * value to memory.
 900  * Returns 0 for success, error for failure.
 901  */
 902 static int sdma_v7_0_ring_test_ring(struct amdgpu_ring *ring)
 903 {
 904         struct amdgpu_device *adev = ring->adev;
 905         unsigned i;
 906         unsigned index;
 907         int r;
 908         u32 tmp;
 909         u64 gpu_addr;
 910         volatile uint32_t *cpu_ptr = NULL;
 911
 912         tmp = 0xCAFEDEAD;
 913
 914         if (ring->is_mes_queue) {
 915                 uint32_t offset = 0;
 916                 offset = amdgpu_mes_ctx_get_offs(ring,
 917                                          AMDGPU_MES_CTX_PADDING_OFFS);
 918                 gpu_addr = amdgpu_mes_ctx_get_offs_gpu_addr(ring, offset);
 919                 cpu_ptr = amdgpu_mes_ctx_get_offs_cpu_addr(ring, offset);
 920                 *cpu_ptr = tmp;
 921         } else {
 922                 r = amdgpu_device_wb_get(adev, &index);
 923                 if (r) {
 924                         dev_err(adev->dev, "(%d) failed to allocate wb slot\n", r);
 925                         return r;
 926                 }
 927
 928                 gpu_addr = adev->wb.gpu_addr + (index * 4);
 929                 adev->wb.wb[index] = cpu_to_le32(tmp);
 930         }
 931
 932         r = amdgpu_ring_alloc(ring, 5);
 933         if (r) {
 934                 DRM_ERROR("amdgpu: dma failed to lock ring %d (%d).\n", ring->idx, r);
 935                 if (!ring->is_mes_queue)
 936                         amdgpu_device_wb_free(adev, index);
 937                 return r;
 938         }
 939
 940         amdgpu_ring_write(ring, SDMA_PKT_COPY_LINEAR_HEADER_OP(SDMA_OP_WRITE) |
 941                           SDMA_PKT_COPY_LINEAR_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR));
 942         amdgpu_ring_write(ring, lower_32_bits(gpu_addr));
 943         amdgpu_ring_write(ring, upper_32_bits(gpu_addr));
 944         amdgpu_ring_write(ring, SDMA_PKT_WRITE_UNTILED_DW_3_COUNT(0));
 945         amdgpu_ring_write(ring, 0xDEADBEEF);
 946         amdgpu_ring_commit(ring);
 947
 948         for (i = 0; i < adev->usec_timeout; i++) {
 949                 if (ring->is_mes_queue)
 950                         tmp = le32_to_cpu(*cpu_ptr);
 951                 else
 952                         tmp = le32_to_cpu(adev->wb.wb[index]);
 953                 if (tmp == 0xDEADBEEF)
 954                         break;
 955                 if (amdgpu_emu_mode == 1)
 956                         msleep(1);
 957                 else
 958                         udelay(1);
 959         }
 960
 961         if (i >= adev->usec_timeout)
 962                 r = -ETIMEDOUT;
 963
 964         if (!ring->is_mes_queue)
 965                 amdgpu_device_wb_free(adev, index);
 966
 967         return r;
 968 }
 969
 970 /**
 971  * sdma_v7_0_ring_test_ib - test an IB on the DMA engine
 972  *
 973  * @ring: amdgpu_ring structure holding ring information
 974  * @timeout: timeout value in jiffies, or MAX_SCHEDULE_TIMEOUT
 975  *
 976  * Test a simple IB in the DMA ring.
 977  * Returns 0 on success, error on failure.
 978  */
 979 static int sdma_v7_0_ring_test_ib(struct amdgpu_ring *ring, long timeout)
 980 {
 981         struct amdgpu_device *adev = ring->adev;
 982         struct amdgpu_ib ib;
 983         struct dma_fence *f = NULL;
 984         unsigned index;
 985         long r;
 986         u32 tmp = 0;
 987         u64 gpu_addr;
 988         volatile uint32_t *cpu_ptr = NULL;
 989
 990         tmp = 0xCAFEDEAD;
 991         memset(&ib, 0, sizeof(ib));
 992
 993         if (ring->is_mes_queue) {
 994                 uint32_t offset = 0;
 995                 offset = amdgpu_mes_ctx_get_offs(ring, AMDGPU_MES_CTX_IB_OFFS);
 996                 ib.gpu_addr = amdgpu_mes_ctx_get_offs_gpu_addr(ring, offset);
 997                 ib.ptr = (void *)amdgpu_mes_ctx_get_offs_cpu_addr(ring, offset);
 998
 999                 offset = amdgpu_mes_ctx_get_offs(ring,
1000                                          AMDGPU_MES_CTX_PADDING_OFFS);
1001                 gpu_addr = amdgpu_mes_ctx_get_offs_gpu_addr(ring, offset);
1002                 cpu_ptr = amdgpu_mes_ctx_get_offs_cpu_addr(ring, offset);
1003                 *cpu_ptr = tmp;
1004         } else {
1005                 r = amdgpu_device_wb_get(adev, &index);
1006                 if (r) {
1007                         dev_err(adev->dev, "(%ld) failed to allocate wb slot\n", r);
1008                         return r;
1009                 }
1010
1011                 gpu_addr = adev->wb.gpu_addr + (index * 4);
1012                 adev->wb.wb[index] = cpu_to_le32(tmp);
1013
1014                 r = amdgpu_ib_get(adev, NULL, 256, AMDGPU_IB_POOL_DIRECT, &ib);
1015                 if (r) {
1016                         DRM_ERROR("amdgpu: failed to get ib (%ld).\n", r);
1017                         goto err0;
1018                 }
1019         }
1020
1021         ib.ptr[0] = SDMA_PKT_COPY_LINEAR_HEADER_OP(SDMA_OP_WRITE) |
1022                 SDMA_PKT_COPY_LINEAR_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR);
1023         ib.ptr[1] = lower_32_bits(gpu_addr);
1024         ib.ptr[2] = upper_32_bits(gpu_addr);
1025         ib.ptr[3] = SDMA_PKT_WRITE_UNTILED_DW_3_COUNT(0);
1026         ib.ptr[4] = 0xDEADBEEF;
1027         ib.ptr[5] = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP);
1028         ib.ptr[6] = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP);
1029         ib.ptr[7] = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP);
1030         ib.length_dw = 8;
1031
1032         r = amdgpu_ib_schedule(ring, 1, &ib, NULL, &f);
1033         if (r)
1034                 goto err1;
1035
1036         r = dma_fence_wait_timeout(f, false, timeout);
1037         if (r == 0) {
1038                 DRM_ERROR("amdgpu: IB test timed out\n");
1039                 r = -ETIMEDOUT;
1040                 goto err1;
1041         } else if (r < 0) {
1042                 DRM_ERROR("amdgpu: fence wait failed (%ld).\n", r);
1043                 goto err1;
1044         }
1045
1046         if (ring->is_mes_queue)
1047                 tmp = le32_to_cpu(*cpu_ptr);
1048         else
1049                 tmp = le32_to_cpu(adev->wb.wb[index]);
1050
1051         if (tmp == 0xDEADBEEF)
1052                 r = 0;
1053         else
1054                 r = -EINVAL;
1055
1056 err1:
1057         amdgpu_ib_free(adev, &ib, NULL);
1058         dma_fence_put(f);
1059 err0:
1060         if (!ring->is_mes_queue)
1061                 amdgpu_device_wb_free(adev, index);
1062         return r;
1063 }
1064
1065
1066 /**
1067  * sdma_v7_0_vm_copy_pte - update PTEs by copying them from the GART
1068  *
1069  * @ib: indirect buffer to fill with commands
1070  * @pe: addr of the page entry
1071  * @src: src addr to copy from
1072  * @count: number of page entries to update
1073  *
1074  * Update PTEs by copying them from the GART using sDMA.
1075  */
1076 static void sdma_v7_0_vm_copy_pte(struct amdgpu_ib *ib,
1077                                   uint64_t pe, uint64_t src,
1078                                   unsigned count)
1079 {
1080         unsigned bytes = count * 8;
1081
1082         ib->ptr[ib->length_dw++] = SDMA_PKT_COPY_LINEAR_HEADER_OP(SDMA_OP_COPY) |
1083                 SDMA_PKT_COPY_LINEAR_HEADER_SUB_OP(SDMA_SUBOP_COPY_LINEAR);
1084         ib->ptr[ib->length_dw++] = bytes - 1;
1085         ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */
1086         ib->ptr[ib->length_dw++] = lower_32_bits(src);
1087         ib->ptr[ib->length_dw++] = upper_32_bits(src);
1088         ib->ptr[ib->length_dw++] = lower_32_bits(pe);
1089         ib->ptr[ib->length_dw++] = upper_32_bits(pe);
1090
1091 }
1092
1093 /**
1094  * sdma_v7_0_vm_write_pte - update PTEs by writing them manually
1095  *
1096  * @ib: indirect buffer to fill with commands
1097  * @pe: addr of the page entry
1098  * @value: dst addr to write into pe
1099  * @count: number of page entries to update
1100  * @incr: increase next addr by incr bytes
1101  *
1102  * Update PTEs by writing them manually using sDMA.
1103  */
1104 static void sdma_v7_0_vm_write_pte(struct amdgpu_ib *ib, uint64_t pe,
1105                                    uint64_t value, unsigned count,
1106                                    uint32_t incr)
1107 {
1108         unsigned ndw = count * 2;
1109
1110         ib->ptr[ib->length_dw++] = SDMA_PKT_COPY_LINEAR_HEADER_OP(SDMA_OP_WRITE) |
1111                 SDMA_PKT_COPY_LINEAR_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR);
1112         ib->ptr[ib->length_dw++] = lower_32_bits(pe);
1113         ib->ptr[ib->length_dw++] = upper_32_bits(pe);
1114         ib->ptr[ib->length_dw++] = ndw - 1;
1115         for (; ndw > 0; ndw -= 2) {
1116                 ib->ptr[ib->length_dw++] = lower_32_bits(value);
1117                 ib->ptr[ib->length_dw++] = upper_32_bits(value);
1118                 value += incr;
1119         }
1120 }
1121
1122 /**
1123  * sdma_v7_0_vm_set_pte_pde - update the page tables using sDMA
1124  *
1125  * @ib: indirect buffer to fill with commands
1126  * @pe: addr of the page entry
1127  * @addr: dst addr to write into pe
1128  * @count: number of page entries to update
1129  * @incr: increase next addr by incr bytes
1130  * @flags: access flags
1131  *
1132  * Update the page tables using sDMA.
1133  */
1134 static void sdma_v7_0_vm_set_pte_pde(struct amdgpu_ib *ib,
1135                                      uint64_t pe,
1136                                      uint64_t addr, unsigned count,
1137                                      uint32_t incr, uint64_t flags)
1138 {
1139         /* for physically contiguous pages (vram) */
1140         ib->ptr[ib->length_dw++] = SDMA_PKT_COPY_LINEAR_HEADER_OP(SDMA_OP_PTEPDE);
1141         ib->ptr[ib->length_dw++] = lower_32_bits(pe); /* dst addr */
1142         ib->ptr[ib->length_dw++] = upper_32_bits(pe);
1143         ib->ptr[ib->length_dw++] = lower_32_bits(flags); /* mask */
1144         ib->ptr[ib->length_dw++] = upper_32_bits(flags);
1145         ib->ptr[ib->length_dw++] = lower_32_bits(addr); /* value */
1146         ib->ptr[ib->length_dw++] = upper_32_bits(addr);
1147         ib->ptr[ib->length_dw++] = incr; /* increment size */
1148         ib->ptr[ib->length_dw++] = 0;
1149         ib->ptr[ib->length_dw++] = count - 1; /* number of entries */
1150 }
1151
1152 /**
1153  * sdma_v7_0_ring_pad_ib - pad the IB
1154  *
1155  * @ring: amdgpu ring pointer
1156  * @ib: indirect buffer to fill with padding
1157  *
1158  * Pad the IB with NOPs to a boundary multiple of 8.
1159  */
1160 static void sdma_v7_0_ring_pad_ib(struct amdgpu_ring *ring, struct amdgpu_ib *ib)
1161 {
1162         struct amdgpu_sdma_instance *sdma = amdgpu_sdma_get_instance_from_ring(ring);
1163         u32 pad_count;
1164         int i;
1165
1166         pad_count = (-ib->length_dw) & 0x7;
1167         for (i = 0; i < pad_count; i++)
1168                 if (sdma && sdma->burst_nop && (i == 0))
1169                         ib->ptr[ib->length_dw++] =
1170                                 SDMA_PKT_COPY_LINEAR_HEADER_OP(SDMA_OP_NOP) |
1171                                 SDMA_PKT_NOP_HEADER_COUNT(pad_count - 1);
1172                 else
1173                         ib->ptr[ib->length_dw++] =
1174                                 SDMA_PKT_COPY_LINEAR_HEADER_OP(SDMA_OP_NOP);
1175 }
1176
1177 /**
1178  * sdma_v7_0_ring_emit_pipeline_sync - sync the pipeline
1179  *
1180  * @ring: amdgpu_ring pointer
1181  *
1182  * Make sure all previous operations are completed (CIK).
1183  */
1184 static void sdma_v7_0_ring_emit_pipeline_sync(struct amdgpu_ring *ring)
1185 {
1186         uint32_t seq = ring->fence_drv.sync_seq;
1187         uint64_t addr = ring->fence_drv.gpu_addr;
1188
1189         /* wait for idle */
1190         amdgpu_ring_write(ring, SDMA_PKT_COPY_LINEAR_HEADER_OP(SDMA_OP_POLL_REGMEM) |
1191                           SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(0) |
1192                           SDMA_PKT_POLL_REGMEM_HEADER_FUNC(3) | /* equal */
1193                           SDMA_PKT_POLL_REGMEM_HEADER_MEM_POLL(1));
1194         amdgpu_ring_write(ring, addr & 0xfffffffc);
1195         amdgpu_ring_write(ring, upper_32_bits(addr) & 0xffffffff);
1196         amdgpu_ring_write(ring, seq); /* reference */
1197         amdgpu_ring_write(ring, 0xffffffff); /* mask */
1198         amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) |
1199                           SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(4)); /* retry count, poll interval */
1200 }
1201
1202 /**
1203  * sdma_v7_0_ring_emit_vm_flush - vm flush using sDMA
1204  *
1205  * @ring: amdgpu_ring pointer
1206  * @vmid: vmid number to use
1207  * @pd_addr: address
1208  *
1209  * Update the page table base and flush the VM TLB
1210  * using sDMA.
1211  */
1212 static void sdma_v7_0_ring_emit_vm_flush(struct amdgpu_ring *ring,
1213                                          unsigned vmid, uint64_t pd_addr)
1214 {
1215         amdgpu_gmc_emit_flush_gpu_tlb(ring, vmid, pd_addr);
1216 }
1217
1218 static void sdma_v7_0_ring_emit_wreg(struct amdgpu_ring *ring,
1219                                      uint32_t reg, uint32_t val)
1220 {
1221         /* SRBM WRITE command will not support on sdma v7.
1222          * Use Register WRITE command instead, which OPCODE is same as SRBM WRITE
1223          */
1224         amdgpu_ring_write(ring, SDMA_PKT_COPY_LINEAR_HEADER_OP(SDMA_OP_SRBM_WRITE));
1225         amdgpu_ring_write(ring, reg << 2);
1226         amdgpu_ring_write(ring, val);
1227 }
1228
1229 static void sdma_v7_0_ring_emit_reg_wait(struct amdgpu_ring *ring, uint32_t reg,
1230                                          uint32_t val, uint32_t mask)
1231 {
1232         amdgpu_ring_write(ring, SDMA_PKT_COPY_LINEAR_HEADER_OP(SDMA_OP_POLL_REGMEM) |
1233                           SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(0) |
1234                           SDMA_PKT_POLL_REGMEM_HEADER_FUNC(3)); /* equal */
1235         amdgpu_ring_write(ring, reg << 2);
1236         amdgpu_ring_write(ring, 0);
1237         amdgpu_ring_write(ring, val); /* reference */
1238         amdgpu_ring_write(ring, mask); /* mask */
1239         amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) |
1240                           SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(10));
1241 }
1242
1243 static void sdma_v7_0_ring_emit_reg_write_reg_wait(struct amdgpu_ring *ring,
1244                                                    uint32_t reg0, uint32_t reg1,
1245                                                    uint32_t ref, uint32_t mask)
1246 {
1247         amdgpu_ring_emit_wreg(ring, reg0, ref);
1248         /* wait for a cycle to reset vm_inv_eng*_ack */
1249         amdgpu_ring_emit_reg_wait(ring, reg0, 0, 0);
1250         amdgpu_ring_emit_reg_wait(ring, reg1, mask, mask);
1251 }
1252
1253 static int sdma_v7_0_early_init(void *handle)
1254 {
1255         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1256         int r;
1257
1258         r = amdgpu_sdma_init_microcode(adev, 0, true);
1259         if (r) {
1260                 DRM_ERROR("Failed to init sdma firmware!\n");
1261                 return r;
1262         }
1263
1264         sdma_v7_0_set_ring_funcs(adev);
1265         sdma_v7_0_set_buffer_funcs(adev);
1266         sdma_v7_0_set_vm_pte_funcs(adev);
1267         sdma_v7_0_set_irq_funcs(adev);
1268         sdma_v7_0_set_mqd_funcs(adev);
1269
1270         return 0;
1271 }
1272
1273 static int sdma_v7_0_sw_init(void *handle)
1274 {
1275         struct amdgpu_ring *ring;
1276         int r, i;
1277         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1278         uint32_t reg_count = ARRAY_SIZE(sdma_reg_list_7_0);
1279         uint32_t *ptr;
1280
1281         /* SDMA trap event */
1282         r = amdgpu_irq_add_id(adev, SOC21_IH_CLIENTID_GFX,
1283                               GFX_11_0_0__SRCID__SDMA_TRAP,
1284                               &adev->sdma.trap_irq);
1285         if (r)
1286                 return r;
1287
1288         for (i = 0; i < adev->sdma.num_instances; i++) {
1289                 ring = &adev->sdma.instance[i].ring;
1290                 ring->ring_obj = NULL;
1291                 ring->use_doorbell = true;
1292                 ring->me = i;
1293
1294                 DRM_DEBUG("SDMA %d use_doorbell being set to: [%s]\n", i,
1295                                 ring->use_doorbell?"true":"false");
1296
1297                 ring->doorbell_index =
1298                         (adev->doorbell_index.sdma_engine[i] << 1); // get DWORD offset
1299
1300                 ring->vm_hub = AMDGPU_GFXHUB(0);
1301                 sprintf(ring->name, "sdma%d", i);
1302                 r = amdgpu_ring_init(adev, ring, 1024,
1303                                      &adev->sdma.trap_irq,
1304                                      AMDGPU_SDMA_IRQ_INSTANCE0 + i,
1305                                      AMDGPU_RING_PRIO_DEFAULT, NULL);
1306                 if (r)
1307                         return r;
1308         }
1309
1310         /* Allocate memory for SDMA IP Dump buffer */
1311         ptr = kcalloc(adev->sdma.num_instances * reg_count, sizeof(uint32_t), GFP_KERNEL);
1312         if (ptr)
1313                 adev->sdma.ip_dump = ptr;
1314         else
1315                 DRM_ERROR("Failed to allocated memory for SDMA IP Dump\n");
1316
1317         return r;
1318 }
1319
1320 static int sdma_v7_0_sw_fini(void *handle)
1321 {
1322         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1323         int i;
1324
1325         for (i = 0; i < adev->sdma.num_instances; i++)
1326                 amdgpu_ring_fini(&adev->sdma.instance[i].ring);
1327
1328         amdgpu_sdma_destroy_inst_ctx(adev, true);
1329
1330         if (adev->firmware.load_type == AMDGPU_FW_LOAD_DIRECT)
1331                 sdma_v12_0_free_ucode_buffer(adev);
1332
1333         kfree(adev->sdma.ip_dump);
1334
1335         return 0;
1336 }
1337
1338 static int sdma_v7_0_hw_init(void *handle)
1339 {
1340         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1341
1342         return sdma_v7_0_start(adev);
1343 }
1344
1345 static int sdma_v7_0_hw_fini(void *handle)
1346 {
1347         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1348
1349         if (amdgpu_sriov_vf(adev))
1350                 return 0;
1351
1352         sdma_v7_0_ctx_switch_enable(adev, false);
1353         sdma_v7_0_enable(adev, false);
1354
1355         return 0;
1356 }
1357
1358 static int sdma_v7_0_suspend(void *handle)
1359 {
1360         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1361
1362         return sdma_v7_0_hw_fini(adev);
1363 }
1364
1365 static int sdma_v7_0_resume(void *handle)
1366 {
1367         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1368
1369         return sdma_v7_0_hw_init(adev);
1370 }
1371
1372 static bool sdma_v7_0_is_idle(void *handle)
1373 {
1374         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1375         u32 i;
1376
1377         for (i = 0; i < adev->sdma.num_instances; i++) {
1378                 u32 tmp = RREG32(sdma_v7_0_get_reg_offset(adev, i, regSDMA0_STATUS_REG));
1379
1380                 if (!(tmp & SDMA0_STATUS_REG__IDLE_MASK))
1381                         return false;
1382         }
1383
1384         return true;
1385 }
1386
1387 static int sdma_v7_0_wait_for_idle(void *handle)
1388 {
1389         unsigned i;
1390         u32 sdma0, sdma1;
1391         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1392
1393         for (i = 0; i < adev->usec_timeout; i++) {
1394                 sdma0 = RREG32(sdma_v7_0_get_reg_offset(adev, 0, regSDMA0_STATUS_REG));
1395                 sdma1 = RREG32(sdma_v7_0_get_reg_offset(adev, 1, regSDMA0_STATUS_REG));
1396
1397                 if (sdma0 & sdma1 & SDMA0_STATUS_REG__IDLE_MASK)
1398                         return 0;
1399                 udelay(1);
1400         }
1401         return -ETIMEDOUT;
1402 }
1403
1404 static int sdma_v7_0_ring_preempt_ib(struct amdgpu_ring *ring)
1405 {
1406         int i, r = 0;
1407         struct amdgpu_device *adev = ring->adev;
1408         u32 index = 0;
1409         u64 sdma_gfx_preempt;
1410
1411         amdgpu_sdma_get_index_from_ring(ring, &index);
1412         sdma_gfx_preempt =
1413                 sdma_v7_0_get_reg_offset(adev, index, regSDMA0_QUEUE0_PREEMPT);
1414
1415         /* assert preemption condition */
1416         amdgpu_ring_set_preempt_cond_exec(ring, false);
1417
1418         /* emit the trailing fence */
1419         ring->trail_seq += 1;
1420         r = amdgpu_ring_alloc(ring, 10);
1421         if (r) {
1422                 DRM_ERROR("ring %d failed to be allocated \n", ring->idx);
1423                 return r;
1424         }
1425         sdma_v7_0_ring_emit_fence(ring, ring->trail_fence_gpu_addr,
1426                                   ring->trail_seq, 0);
1427         amdgpu_ring_commit(ring);
1428
1429         /* assert IB preemption */
1430         WREG32(sdma_gfx_preempt, 1);
1431
1432         /* poll the trailing fence */
1433         for (i = 0; i < adev->usec_timeout; i++) {
1434                 if (ring->trail_seq ==
1435                     le32_to_cpu(*(ring->trail_fence_cpu_addr)))
1436                         break;
1437                 udelay(1);
1438         }
1439
1440         if (i >= adev->usec_timeout) {
1441                 r = -EINVAL;
1442                 DRM_ERROR("ring %d failed to be preempted\n", ring->idx);
1443         }
1444
1445         /* deassert IB preemption */
1446         WREG32(sdma_gfx_preempt, 0);
1447
1448         /* deassert the preemption condition */
1449         amdgpu_ring_set_preempt_cond_exec(ring, true);
1450         return r;
1451 }
1452
1453 static int sdma_v7_0_set_trap_irq_state(struct amdgpu_device *adev,
1454                                         struct amdgpu_irq_src *source,
1455                                         unsigned type,
1456                                         enum amdgpu_interrupt_state state)
1457 {
1458         u32 sdma_cntl;
1459
1460         u32 reg_offset = sdma_v7_0_get_reg_offset(adev, type, regSDMA0_CNTL);
1461
1462         sdma_cntl = RREG32(reg_offset);
1463         sdma_cntl = REG_SET_FIELD(sdma_cntl, SDMA0_CNTL, TRAP_ENABLE,
1464                        state == AMDGPU_IRQ_STATE_ENABLE ? 1 : 0);
1465         WREG32(reg_offset, sdma_cntl);
1466
1467         return 0;
1468 }
1469
1470 static int sdma_v7_0_process_trap_irq(struct amdgpu_device *adev,
1471                                       struct amdgpu_irq_src *source,
1472                                       struct amdgpu_iv_entry *entry)
1473 {
1474         int instances, queue;
1475         uint32_t mes_queue_id = entry->src_data[0];
1476
1477         DRM_DEBUG("IH: SDMA trap\n");
1478
1479         if (adev->enable_mes && (mes_queue_id & AMDGPU_FENCE_MES_QUEUE_FLAG)) {
1480                 struct amdgpu_mes_queue *queue;
1481
1482                 mes_queue_id &= AMDGPU_FENCE_MES_QUEUE_ID_MASK;
1483
1484                 spin_lock(&adev->mes.queue_id_lock);
1485                 queue = idr_find(&adev->mes.queue_id_idr, mes_queue_id);
1486                 if (queue) {
1487                         DRM_DEBUG("process smda queue id = %d\n", mes_queue_id);
1488                         amdgpu_fence_process(queue->ring);
1489                 }
1490                 spin_unlock(&adev->mes.queue_id_lock);
1491                 return 0;
1492         }
1493
1494         queue = entry->ring_id & 0xf;
1495         instances = (entry->ring_id & 0xf0) >> 4;
1496         if (instances > 1) {
1497                 DRM_ERROR("IH: wrong ring_ID detected, as wrong sdma instance\n");
1498                 return -EINVAL;
1499         }
1500
1501         switch (entry->client_id) {
1502         case SOC21_IH_CLIENTID_GFX:
1503                 switch (queue) {
1504                 case 0:
1505                         amdgpu_fence_process(&adev->sdma.instance[instances].ring);
1506                         break;
1507                 default:
1508                         break;
1509                 }
1510                 break;
1511         }
1512         return 0;
1513 }
1514
1515 static int sdma_v7_0_process_illegal_inst_irq(struct amdgpu_device *adev,
1516                                               struct amdgpu_irq_src *source,
1517                                               struct amdgpu_iv_entry *entry)
1518 {
1519         return 0;
1520 }
1521
1522 static int sdma_v7_0_set_clockgating_state(void *handle,
1523                                            enum amd_clockgating_state state)
1524 {
1525         return 0;
1526 }
1527
1528 static int sdma_v7_0_set_powergating_state(void *handle,
1529                                           enum amd_powergating_state state)
1530 {
1531         return 0;
1532 }
1533
1534 static void sdma_v7_0_get_clockgating_state(void *handle, u64 *flags)
1535 {
1536 }
1537
1538 static void sdma_v7_0_print_ip_state(void *handle, struct drm_printer *p)
1539 {
1540         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1541         int i, j;
1542         uint32_t reg_count = ARRAY_SIZE(sdma_reg_list_7_0);
1543         uint32_t instance_offset;
1544
1545         if (!adev->sdma.ip_dump)
1546                 return;
1547
1548         drm_printf(p, "num_instances:%d\n", adev->sdma.num_instances);
1549         for (i = 0; i < adev->sdma.num_instances; i++) {
1550                 instance_offset = i * reg_count;
1551                 drm_printf(p, "\nInstance:%d\n", i);
1552
1553                 for (j = 0; j < reg_count; j++)
1554                         drm_printf(p, "%-50s \t 0x%08x\n", sdma_reg_list_7_0[j].reg_name,
1555                                    adev->sdma.ip_dump[instance_offset + j]);
1556         }
1557 }
1558
1559 static void sdma_v7_0_dump_ip_state(void *handle)
1560 {
1561         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1562         int i, j;
1563         uint32_t instance_offset;
1564         uint32_t reg_count = ARRAY_SIZE(sdma_reg_list_7_0);
1565
1566         if (!adev->sdma.ip_dump)
1567                 return;
1568
1569         amdgpu_gfx_off_ctrl(adev, false);
1570         for (i = 0; i < adev->sdma.num_instances; i++) {
1571                 instance_offset = i * reg_count;
1572                 for (j = 0; j < reg_count; j++)
1573                         adev->sdma.ip_dump[instance_offset + j] =
1574                                 RREG32(sdma_v7_0_get_reg_offset(adev, i,
1575                                        sdma_reg_list_7_0[j].reg_offset));
1576         }
1577         amdgpu_gfx_off_ctrl(adev, true);
1578 }
1579
1580 const struct amd_ip_funcs sdma_v7_0_ip_funcs = {
1581         .name = "sdma_v7_0",
1582         .early_init = sdma_v7_0_early_init,
1583         .late_init = NULL,
1584         .sw_init = sdma_v7_0_sw_init,
1585         .sw_fini = sdma_v7_0_sw_fini,
1586         .hw_init = sdma_v7_0_hw_init,
1587         .hw_fini = sdma_v7_0_hw_fini,
1588         .suspend = sdma_v7_0_suspend,
1589         .resume = sdma_v7_0_resume,
1590         .is_idle = sdma_v7_0_is_idle,
1591         .wait_for_idle = sdma_v7_0_wait_for_idle,
1592         .soft_reset = sdma_v7_0_soft_reset,
1593         .check_soft_reset = sdma_v7_0_check_soft_reset,
1594         .set_clockgating_state = sdma_v7_0_set_clockgating_state,
1595         .set_powergating_state = sdma_v7_0_set_powergating_state,
1596         .get_clockgating_state = sdma_v7_0_get_clockgating_state,
1597         .dump_ip_state = sdma_v7_0_dump_ip_state,
1598         .print_ip_state = sdma_v7_0_print_ip_state,
1599 };
1600
1601 static const struct amdgpu_ring_funcs sdma_v7_0_ring_funcs = {
1602         .type = AMDGPU_RING_TYPE_SDMA,
1603         .align_mask = 0xf,
1604         .nop = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP),
1605         .support_64bit_ptrs = true,
1606         .secure_submission_supported = true,
1607         .get_rptr = sdma_v7_0_ring_get_rptr,
1608         .get_wptr = sdma_v7_0_ring_get_wptr,
1609         .set_wptr = sdma_v7_0_ring_set_wptr,
1610         .emit_frame_size =
1611                 5 + /* sdma_v7_0_ring_init_cond_exec */
1612                 6 + /* sdma_v7_0_ring_emit_hdp_flush */
1613                 6 + /* sdma_v7_0_ring_emit_pipeline_sync */
1614                 /* sdma_v7_0_ring_emit_vm_flush */
1615                 SOC15_FLUSH_GPU_TLB_NUM_WREG * 3 +
1616                 SOC15_FLUSH_GPU_TLB_NUM_REG_WAIT * 6 +
1617                 10 + 10 + 10, /* sdma_v7_0_ring_emit_fence x3 for user fence, vm fence */
1618         .emit_ib_size = 5 + 7 + 6, /* sdma_v7_0_ring_emit_ib */
1619         .emit_ib = sdma_v7_0_ring_emit_ib,
1620         .emit_mem_sync = sdma_v7_0_ring_emit_mem_sync,
1621         .emit_fence = sdma_v7_0_ring_emit_fence,
1622         .emit_pipeline_sync = sdma_v7_0_ring_emit_pipeline_sync,
1623         .emit_vm_flush = sdma_v7_0_ring_emit_vm_flush,
1624         .emit_hdp_flush = sdma_v7_0_ring_emit_hdp_flush,
1625         .test_ring = sdma_v7_0_ring_test_ring,
1626         .test_ib = sdma_v7_0_ring_test_ib,
1627         .insert_nop = sdma_v7_0_ring_insert_nop,
1628         .pad_ib = sdma_v7_0_ring_pad_ib,
1629         .emit_wreg = sdma_v7_0_ring_emit_wreg,
1630         .emit_reg_wait = sdma_v7_0_ring_emit_reg_wait,
1631         .emit_reg_write_reg_wait = sdma_v7_0_ring_emit_reg_write_reg_wait,
1632         .init_cond_exec = sdma_v7_0_ring_init_cond_exec,
1633         .preempt_ib = sdma_v7_0_ring_preempt_ib,
1634 };
1635
1636 static void sdma_v7_0_set_ring_funcs(struct amdgpu_device *adev)
1637 {
1638         int i;
1639
1640         for (i = 0; i < adev->sdma.num_instances; i++) {
1641                 adev->sdma.instance[i].ring.funcs = &sdma_v7_0_ring_funcs;
1642                 adev->sdma.instance[i].ring.me = i;
1643         }
1644 }
1645
1646 static const struct amdgpu_irq_src_funcs sdma_v7_0_trap_irq_funcs = {
1647         .set = sdma_v7_0_set_trap_irq_state,
1648         .process = sdma_v7_0_process_trap_irq,
1649 };
1650
1651 static const struct amdgpu_irq_src_funcs sdma_v7_0_illegal_inst_irq_funcs = {
1652         .process = sdma_v7_0_process_illegal_inst_irq,
1653 };
1654
1655 static void sdma_v7_0_set_irq_funcs(struct amdgpu_device *adev)
1656 {
1657         adev->sdma.trap_irq.num_types = AMDGPU_SDMA_IRQ_INSTANCE0 +
1658                                         adev->sdma.num_instances;
1659         adev->sdma.trap_irq.funcs = &sdma_v7_0_trap_irq_funcs;
1660         adev->sdma.illegal_inst_irq.funcs = &sdma_v7_0_illegal_inst_irq_funcs;
1661 }
1662
1663 /**
1664  * sdma_v7_0_emit_copy_buffer - copy buffer using the sDMA engine
1665  *
1666  * @ib: indirect buffer to fill with commands
1667  * @src_offset: src GPU address
1668  * @dst_offset: dst GPU address
1669  * @byte_count: number of bytes to xfer
1670  * @copy_flags: copy flags for the buffers
1671  *
1672  * Copy GPU buffers using the DMA engine.
1673  * Used by the amdgpu ttm implementation to move pages if
1674  * registered as the asic copy callback.
1675  */
1676 static void sdma_v7_0_emit_copy_buffer(struct amdgpu_ib *ib,
1677                                        uint64_t src_offset,
1678                                        uint64_t dst_offset,
1679                                        uint32_t byte_count,
1680                                        uint32_t copy_flags)
1681 {
1682         uint32_t num_type, data_format, max_com;
1683
1684         max_com = AMDGPU_COPY_FLAGS_GET(copy_flags, MAX_COMPRESSED);
1685         data_format = AMDGPU_COPY_FLAGS_GET(copy_flags, DATA_FORMAT);
1686         num_type = AMDGPU_COPY_FLAGS_GET(copy_flags, NUMBER_TYPE);
1687
1688         ib->ptr[ib->length_dw++] = SDMA_PKT_COPY_LINEAR_HEADER_OP(SDMA_OP_COPY) |
1689                 SDMA_PKT_COPY_LINEAR_HEADER_SUB_OP(SDMA_SUBOP_COPY_LINEAR) |
1690                 SDMA_PKT_COPY_LINEAR_HEADER_TMZ((copy_flags & AMDGPU_COPY_FLAGS_TMZ) ? 1 : 0) |
1691                 SDMA_PKT_COPY_LINEAR_HEADER_CPV(1);
1692
1693         ib->ptr[ib->length_dw++] = byte_count - 1;
1694         ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */
1695         ib->ptr[ib->length_dw++] = lower_32_bits(src_offset);
1696         ib->ptr[ib->length_dw++] = upper_32_bits(src_offset);
1697         ib->ptr[ib->length_dw++] = lower_32_bits(dst_offset);
1698         ib->ptr[ib->length_dw++] = upper_32_bits(dst_offset);
1699
1700         if ((copy_flags & (AMDGPU_COPY_FLAGS_READ_DECOMPRESSED | AMDGPU_COPY_FLAGS_WRITE_COMPRESSED)))
1701                 ib->ptr[ib->length_dw++] = SDMA_DCC_DATA_FORMAT(data_format) | SDMA_DCC_NUM_TYPE(num_type) |
1702                         ((copy_flags & AMDGPU_COPY_FLAGS_READ_DECOMPRESSED) ? SDMA_DCC_READ_CM(2) : 0) |
1703                         ((copy_flags & AMDGPU_COPY_FLAGS_WRITE_COMPRESSED) ? SDMA_DCC_WRITE_CM(1) : 0) |
1704                         SDMA_DCC_MAX_COM(max_com) | SDMA_DCC_MAX_UCOM(1);
1705         else
1706                 ib->ptr[ib->length_dw++] = 0;
1707 }
1708
1709 /**
1710  * sdma_v7_0_emit_fill_buffer - fill buffer using the sDMA engine
1711  *
1712  * @ib: indirect buffer to fill
1713  * @src_data: value to write to buffer
1714  * @dst_offset: dst GPU address
1715  * @byte_count: number of bytes to xfer
1716  *
1717  * Fill GPU buffers using the DMA engine.
1718  */
1719 static void sdma_v7_0_emit_fill_buffer(struct amdgpu_ib *ib,
1720                                        uint32_t src_data,
1721                                        uint64_t dst_offset,
1722                                        uint32_t byte_count)
1723 {
1724         ib->ptr[ib->length_dw++] = SDMA_PKT_COPY_LINEAR_HEADER_OP(SDMA_OP_CONST_FILL);
1725         ib->ptr[ib->length_dw++] = lower_32_bits(dst_offset);
1726         ib->ptr[ib->length_dw++] = upper_32_bits(dst_offset);
1727         ib->ptr[ib->length_dw++] = src_data;
1728         ib->ptr[ib->length_dw++] = byte_count - 1;
1729 }
1730
1731 static const struct amdgpu_buffer_funcs sdma_v7_0_buffer_funcs = {
1732         .copy_max_bytes = 0x400000,
1733         .copy_num_dw = 8,
1734         .emit_copy_buffer = sdma_v7_0_emit_copy_buffer,
1735         .fill_max_bytes = 0x400000,
1736         .fill_num_dw = 5,
1737         .emit_fill_buffer = sdma_v7_0_emit_fill_buffer,
1738 };
1739
1740 static void sdma_v7_0_set_buffer_funcs(struct amdgpu_device *adev)
1741 {
1742         adev->mman.buffer_funcs = &sdma_v7_0_buffer_funcs;
1743         adev->mman.buffer_funcs_ring = &adev->sdma.instance[0].ring;
1744 }
1745
1746 static const struct amdgpu_vm_pte_funcs sdma_v7_0_vm_pte_funcs = {
1747         .copy_pte_num_dw = 7,
1748         .copy_pte = sdma_v7_0_vm_copy_pte,
1749         .write_pte = sdma_v7_0_vm_write_pte,
1750         .set_pte_pde = sdma_v7_0_vm_set_pte_pde,
1751 };
1752
1753 static void sdma_v7_0_set_vm_pte_funcs(struct amdgpu_device *adev)
1754 {
1755         unsigned i;
1756
1757         adev->vm_manager.vm_pte_funcs = &sdma_v7_0_vm_pte_funcs;
1758         for (i = 0; i < adev->sdma.num_instances; i++) {
1759                 adev->vm_manager.vm_pte_scheds[i] =
1760                         &adev->sdma.instance[i].ring.sched;
1761         }
1762         adev->vm_manager.vm_pte_num_scheds = adev->sdma.num_instances;
1763 }
1764
1765 const struct amdgpu_ip_block_version sdma_v7_0_ip_block = {
1766         .type = AMD_IP_BLOCK_TYPE_SDMA,
1767         .major = 7,
1768         .minor = 0,
1769         .rev = 0,
1770         .funcs = &sdma_v7_0_ip_funcs,
1771 };